University of Idaho researchers have released 2013 Idaho recommendations for potato psyllids and zebra chip, a brief summary of 2012 findings and the monitoring plans for 2013.
Recommendations were a collaborative effort of Erik Wenninger, Nora Olsen, Phil Nolte, and Mike Thornton of the University of Idaho; Jeff Miller of Miller Research; Andy Jensen of the Idaho, Washington, and Oregon Potato Commissions.
http://extension.uidaho.edu/kimberly/2013/05/2013-idaho-recommendations-for-potato-psyllid-and-zebra-chip-management/